Job Title: Principal Engineer - Combat Systems (External Communications) Location: Frimley- we offer a range of hybrid and flexible working arrangements - please speak to your recruiter about the options for this particular role. Salary: Competitive What you''ll be doing: Define and develop the ECS design through systems engineering principles , including; architecture, requirements, concept solutions and interfaces to enable the development and production of the component sub-systems Understand the contractual and performance requirements for communication products and sub-systems, and support the definition and associated acceptance criteria and events through design, build, integration, installation and commissioning activities Understand and support the flow-down of requirements to suppliers and acceptance of their specific deliverables, ensuring it is captured and recorded appropriately Support the EM and PM in supporting bids, proposal development and project planning activities Provide technical support to integrated performance and acceptance activities, including acceptance of equipment from suppliers through to system acceptance by the customer Support the documentation of domain knowledge and pass on information and expertise to help grow the knowledge base within appropriate business teams Your skills and experiences: Knowledge and experience in wireless communication systems and products in the maritime, defence and/or commercial domains and an understanding